Steuber



Y (Model.)

C. F. KLEINSTBUBER.

BENDULUM SGALES. No. 247,366. Patented Sept. 20,1881.

5% @me l y ,E260 rneys Fig. 2 is an edge view of the same.

, UNrrEn- STATES PATENT @Finca .CHARLES F. KLEINS'IEUBER,OF MILWAUKEE, WISCONSIN, ASSIGNOR T() THE PHCENIX SCALEA COMPANYQAOF SAME PLAGE.

PEN DU LUM-SCALE.

SPECIFICATION- forming part of Letters Patent No. 247,366, dated September 20, 1881.

Application ieaMay 16,1881. (Model.)

j To all whom it may concern:

Be it known that I, OHAnLEs F. KLE1N STEUBER, of Milwaukee, in the county of Milwaukee, and in the State of Wisconsin, have invented certain new and useful Improvements in Weighing-Scales; and I do hereby declare that the following is a. full, clear, and exact description thereof.

My invention relates to weighing-scales, and will be fully described hereinafter.

In the drawings, Figure l is a perspective view of a scale embodying my invention, and Figs. 3, 4, and 5 are details.

A is the standard, which may be attached to a horizontal support, as in Fig. l, or a vertical support, as in Fig. 2, and which is arched, as at B. The arch B terminates in a lug, C, slotted to form a bearing, a, and just opposite this lug C, I form another lug, Cf, on standard A, also slotted, to form a bearing, a and these bearings a a are 'for journals formed on the trunnions c of the scale-beam E. The scale beam E is cast or otherwise provided with a segmental cam-shaped or eccentric head, D, on its upper end, and a counterpoise, l, on its lower end, from which latter I extend a rod, d, carrying a pointer, d. rIhe dial-plate F is attached to the lug C and braced by a small bracket extending down from it. A chain, H, attached to the segmental head Dat b falls down over its face, so that when the pointer d is at o the weight of the pan G is taken by the head D at b, as shown in dotted lines, Fig. 1, or just on a horizontal line with the axis of the trunnion of scale-beam E. Now, since the head D is segmental, the chain, to hang on a vertical line from its support, must leavethe head on a tangent, and, consequently, with the head Din the position shown in dotted lines the chain would be suspended from point b; but if the weight be increased in pau G sufficiently to carry the counterpoise I to 65A, as shown in full lines, it will be seen that the point b', traveling on the arc of a` circle, will pass to a point immediately beneath the trunnion c and away from the chain, which is suspended from the head D at a much higher point on the head, 'but still on a horizontal line with the axis about which the head D revolves, so that a constant and unvarying leverage is maintained, and the spaces indicating the pounds may be the same distance apart on the dial from top to bottom. In other words, if a pound-weight on pan Gr will carry the counterpoise I and pointer one inch from 0, two pounds will carry them two inches. If four pounds be added to this, the pointer will travel six inches from the point o on the arc of the dial. This is a feature of great importance in scaleanaking, as it does away with a large amount of the labor involved in preparing the face-plates. In Fig. 4t I have shown, in side elevation, the exact shape of the segmental head D, in order to more clearly illustrate the working of my device. As shown, this is eccentric on its upper face, instead of being cast in the arc of a circle, and the line of deviation from such arc is exactly proportionate to the distance the pointer d moves from a vertical line as the weight in the pan is increased, and therefore, as stated, the lines of graduation on the periphery of the dial-plate are always at equal distances apart, instead of being nearer together between the points indicating greater weight, as would be necessary if the head D were cast on the arc of a circle.

In packing scales for shipment it is generally necessary to take them apart, and that this may be done easily I provide the open bearings a a', into which the journals on trunnion c of the scale-beam rest securely, to be lifted out when it is found desirable to remove the beam, and to be as easily replaced. One ot' the bearings a a may, instead of being entirely open, be cast with a cover, so that its journal may be introduced from one side. The chain H, as shown, isiformed of pivoted scales or Hat links, whose sides overlap and snugly tit against the sides ofthe segmental head D. By this construction the chain is prevented from slipping oi the head, even should one or more ot the links give way on one side, and thus the pan is always suspended in its true position, even though the individual links might be loosened or strained out of place, which might in ordinary chains cause the pan to change its position slightly, and thus render the scale inaccurate.

In Fig. 5 I have shown in detail the simplest form of such chain and the construction which I prefer. As will be seen, the links are here IOC lnade by each being stamped out of brass, and each link, being a single piece, perforated and bent, so that the whole chain may be easily, cheaply, and quickly formed by passing the hooked end of one link through the slot inthe link next it. In this way it is impossible for the chain to get out of order so long as none of the links are entirely broken in two, and should this occura fresh link could be instantly slipped into the place of the broken link without trouble or loss of time or the necessity of sending for a skilled workman, and as the links are of uniform size the substitution of a new link for an old one would not aect the reliability of the scale in the slightest degree. In scales of this nature it is necessary for an overlapping chain to be used, as otherwise, if the goods to be weighed were placed near the edge of the pan, a chain of ordinary construction wouldbe very apt to slip oftl the segmental head and endanger the accuracy of the device.

What I claim as my invention is l. A scale-beam having the segmental camshaped head D, in combination with the chain H, for supporting the pan, attached at b, and resting upon the face ot' the head D, the said chain having pivoted links, which overlap the sides of the head D and keep the chain always in its true position, as set forth.

2. The improved weighing-scale described, consisting of the standard A, arch B, terminating in lug C, with open bearing a, the scalebeam E, with trunnions c, rod, counterpoise and pointer, dial-plate F, and segmental camshaped head D, and pan-chain H, having pivoted links, which overlap the sides of the head D, as shown and described.

In testimony that I claim the foregoing I have hereunto set my hand this 2d day of May, 1881.

CHARLES F. KLEINSTEUBER.

Witnesses:

S. S. STOU'r, H. G. UNDERWOOD. 

